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题名: Platinum-Modulated Cobalt Nanocatalysts for Low-Temperature Aqueous-Phase Fischer-Tropsch Synthesis
作者: Wang, Hang1;  Zhou, Wu3, 4;  Liu, Jin-Xun2;  Si, Rui5;  Sun, Geng1;  Zhong, Meng-Qi1;  Su, Hai-Yan2;  Zhao, Hua-Bo1;  Rodriguez, Jose A.5;  Pennycook, Stephen J.4;  Idrobo, Juan-Carlos4;  Li, Wei-Xue2;  Kou, Yuan1;  Ma, Ding1
刊名: JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
发表日期: 2013-03-13
DOI: 10.1021/ja400771a
卷: 135, 期:10, 页:4149-4158
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Fischer-Tropsch synthesis (FTS) is an important catalytic process for liquid fuel generation, which converts coal/shale gas/biomass-derived syngas (a mixture of CO and H-2) to oil. While FTS is thermodynamically favored at low temperature, it is desirable to develop a new catalytic system that could allow working at a relatively low reaction temperature. In this article, we present a one-step hydrogenation-reduction route for the synthesis of Pt-Co nanoparticles (NPs) (NPs) which were found to be excellent catalysts for aqueous-phase FTS at 433 K. Coupling with atomic-resolution scanning transmission electron microscopy (STEM) and theoretical calculations, the outstanding activity is rationalized by the formation of Co overlayer structures on Pt NPs or Pt-Co alloy NPs. The improved energetics and kinetics from the change of the transition states imposed by the lattice mismatch between the two metals are concluded to be the key factors responsible for the dramatically improved FTS performance.
关键词[WOS]: GAS-SHIFT REACTION ;  RUTHENIUM NANOCLUSTER CATALYST ;  OXYGEN REDUCTION REACTION ;  CORE-SHELL NANOPARTICLES ;  CARBON-MONOXIDE ;  IONIC LIQUIDS ;  BIMETALLIC CATALYSTS ;  ELECTRON-MICROSCOPE ;  DISSOCIATION ;  OXIDATION
语种: 英语
WOS记录号: WOS:000316244200056
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137817
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
4.Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA
5.Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

Recommended Citation:
Wang, Hang,Zhou, Wu,Liu, Jin-Xun,et al. Platinum-Modulated Cobalt Nanocatalysts for Low-Temperature Aqueous-Phase Fischer-Tropsch Synthesis[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2013,135(10):4149-4158.
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